Question

При температуре 80 градусов реакция заканчивается за 1 минуту 20 секунд за сколько времени закончится эта же реакция при температуре 120 градусов если температурный коэффициент равен 2

Answer 1

1мин20сек - 80 сек. И дано 80 градусов.
120 градусов за 120 сек=2 минуты

Answer 2

Calculation of Reaction Time at 120 Degrees Celsius

To calculate the time it takes for the reaction to finish at a temperature of 120 degrees Celsius, we can use the temperature coefficient provided, which is 2.

Given: - Temperature at which the reaction finishes: 80 degrees Celsius - Time it takes for the reaction to finish at 80 degrees Celsius: 1 minute 20 seconds

We need to find the time it takes for the same reaction to finish at 120 degrees Celsius.

To do this, we can use the Arrhenius equation, which relates the rate constant of a reaction to the temperature:

k2 / k1 = e^((Ea / R) * (1 / T1 - 1 / T2))

Where: - k1 and k2 are the rate constants at temperatures T1 and T2, respectively. - Ea is the activation energy of the reaction. - R is the gas constant. - T1 and T2 are the temperatures in Kelvin.

Since we are given the temperature coefficient (Q10) as 2, we can assume that the activation energy (Ea) remains constant.

Let's assume that the time it takes for the reaction to finish at 120 degrees Celsius is represented by t2.

Using the Arrhenius equation, we can set up the following equation:

t2 / (1 minute 20 seconds) = e^((Ea / R) * (1 / (80 + 273) - 1 / (120 + 273)))

Now, let's solve for t2:

t2 = (1 minute 20 seconds) * e^((Ea / R) * (1 / (80 + 273) - 1 / (120 + 273)))

Please note that we do not have the specific activation energy (Ea) or the gas constant (R) for this reaction. Therefore, we cannot provide an exact numerical value for the time it takes for the reaction to finish at 120 degrees Celsius. However, you can use the provided equation and substitute the appropriate values to calculate the result.